How do we know we can be justified by grace?

Justification by grace is a core doctrine established in the New Testament. In Ephesians 2:8-9, Paul articulates that we are saved by grace through faith, a gift from God, not by our works so that no one may boast. This means our justification is completely apart from any merit of our own; it is an unearned gift. Additionally, Romans 5:1 reassures believers that being justified by faith, we have peace with God through our Lord Jesus Christ. This illustrates that grace, rather than law or our own righteousness, is the source of our standing before God, making it crucial for our salvation.